PET3CW10000H3

Drop-in equivalent of 3CW10000H3
Water Cooled Triode For Industrial RF Heating

• Power Triode Tube Valve
• Output Power: 18 kW (CW mode)
• Anode voltage: 10 kV max
• Anode dissipation: 10 kW max
• Frequency: 90 MHz max
• Warranty: 12 months irrespective of number of hours in operation
• Condition: Brand New
• Price: Please call +91-9815309603 or email: sales@pilanielectron.com

Manufactured in India, in a world-class facility equipped with high quality machinery, materials and components sourced from reputed suppliers in America, Europe and Japan.

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Data Sheet of PET3CW10000H3

Quote

PET3CW100000H3 (equivalent of 3CW100000H3) is a water-cooled, ceramic-metal power triode with a robust mesh filament, for use in industrial radio-frequency heating
 
Electrical Characteristics
Filament                    Thoriated tungsten
Filament voltage (see note 1)           7.5 V
Filament current   75 A
Surge Filament current (peak) (see note 2)              375 A
Filament cold resistance                   11.8 mΩ
Peak usable cathode current            20 A
Amplification factor              20
Inter – electrode capacitances:
Grid to anode            27 pF
Grid to filament                    54 pF
Anode to filament                 1.8 pF
 
Mechanical Characteristics
Connections             Filament leads and grid contact flanges
Operating position               .     vertical, either way up
Maximum operating temperature      250 O C
Maximum dimensions           see outline
Net weight                4 kg (8.8 pounds) approx
 
Accessories
Water coupling, supplied with PET3CW10000H3     CWPA323A
Thermal fuse available for PET3CW10000H3           PA85E
Cathode connector               WPA830
 
For frequencies above 2MHz, CWPA830 should be used in conjunction with a strip connection to provide a low inductance cathode return.
 
Cooling
Anode is cooled by circulating water through the removable anode water jacket. The table below lists the minimum water flow requirement for adequate anode cooling at various anode dissipation levels. In all cases, the outlet water temperature must not exceed 70 ⁰C nor should inlet water pressure exceed 60 psi. This table is based upon 20 ⁰C temperature rise.
 
Additional forced-air cooling of the tube base is also required to maintain ceramic-to-metal seal temperature below the 250 ⁰C maximum. Approximately 50 ft3/min of cooling air directed into the base structure will generally satisfy requirements.
 
Minimum Water Cooling Requirements of PET3CW100000H3 (equivalent of 3CW100000H3)
 
Anode                                                  Water                                                    Pressure
Dissipation                                           Flow                                                     Drop
(kW)                                                     l/min                                                     (psi)

 5                                                         10                                                         2.2
7.5                                                        12                                                         2.3
10                                                         13                                                         2.5
15                                                         15                                                         3.0

The values given allow for maximum filament and grid dissipation in addition to the anode dissipation shown.
 
Radio Frequency Oscillator For Industrial Service
(Class C Conditions, One Tube)
Maximum Ratings (Absolute Values)
Frequency                90 MHz max
Anode voltage d.c       10 kV max
Anode current d.c. (see note 3)       3.0 A max
Anode input power              25 kW max
Anode dissipation               5 kW max
Grid voltage d.c       –1000 V max
Grid current d.c (see note 4)            0.5 A max
Grid dissipation        150 W max
Cathode current d.c       4.0 A max
 
Typical Operating Conditions of PET3CW100000H3 (equivalent of 3CW100000H3)
Frequency                30  30         MHz
Anode voltage d.c       7.0         9.0        kV
Anode current d.c       2.65        2.52      A
Anode dissipation               4.1  4.1        kW
Grid voltage d.c       –700          –900     V
Grid resistor             3650          4900     Ω
Grid current d.c        192            184       mA
Grid dissipation        44  42         W
Drive power             179            208       W
Anode input power              18.6            22.7      kW
Anode output power            14.5            18.6      kW
Output power less drive                  14.3 18.4
 
NOTES

1. The filament voltage measured at the tube should be 7.5 V ± 5% for satisfactory performance, maximum life is obtained at –5% (7.1 V).
2. The filament current must not exceed 375 A, even momentarily, at any time.
3. Maximum anode voltage and current should not be applied simultaneously; this could result in excessive anode dissipation. The anode supply should include current-limiting resistors, and an over-current trip to remove anode voltage quickly in the event of an overload or arc (such load variations and faults are common in industrial service). Spark gaps should be connected between anode and ground, to protect the tube from voltage transients under fault conditions.
4. The grid current rating of 0.5 A of d.c. should not be exceed, except for very short periods during tuning. Normally, reasonable efficiency can be obtained with a grid current not exceeding 0.25 A. The grid circuit should include over-current protection, and d.c. grid current should be monitored continuously during industrial operation with varying loads. 

Health and Safety Hazards

Download Data Sheet of PET3CW10000H3 (Equivalent of 3CW10000H3)